EP 1674786 A3 20061102 - LED Bulb
Title (en)
LED Bulb
Title (de)
LED-Lampe
Title (fr)
Lampe à diodes électroluminescentes
Publication
Application
Priority
- US 63925004 P 20041227
- US 5830405 A 20050216
Abstract (en)
[origin: EP1674786A2] An LED light source (10) has a housing (12) having a base (14). A hollow core (16) projects from the base (14) and is arrayed about a longitudinal axis (18). A printed circuit board (20) is positioned in the base (14) at one end (22) of the hollow core (16) and has a plurality of LEDs (24) operatively fixed thereto about the center thereof. In a preferred embodiment of the invention the hollow core (16) is tubular and the printed circuit board (20) is circular. A light guide (28) with a body (30) that, in a preferred embodiment, is cup-shaped as shown in Figs. 2 and 4a, has a given wall thickness "T". The light guide (28) is positioned in the hollow core (16) and has a first end (32) in operative relation with the plurality of LEDs (24) and a second end (34) projecting beyond the hollow core. The thickness "T" is at least large enough to encompass the emitting area of the LEDs that are employed with it.
IPC 8 full level
F21K 99/00 (2010.01); F21V 8/00 (2006.01); F21V 29/00 (2006.01); F21Y 101/02 (2006.01)
CPC (source: EP US)
F21K 9/00 (2013.01 - EP US); F21K 9/61 (2016.08 - EP US); F21S 41/192 (2018.01 - EP US); F21S 41/24 (2018.01 - EP US); F21S 41/321 (2018.01 - EP US); G02B 6/0008 (2013.01 - EP US); F21S 45/47 (2018.01 - EP US); F21W 2102/00 (2018.01 - US); F21W 2102/30 (2018.01 - EP); F21W 2103/00 (2018.01 - US); F21W 2103/10 (2018.01 - EP); F21W 2103/35 (2018.01 - EP); F21Y 2115/10 (2016.08 - EP US)
Citation (search report)
- [Y] EP 1429395 A2 20040616 - OSRAM SYLVANIA INC [US]
- [Y] US 2004208019 A1 20041021 - KOIZUMI HIROYA [JP], et al
- [A] US 2003185005 A1 20031002 - SOMMERS MATHEW [US], et al
- [A] US 6350041 B1 20020226 - TARSA ERIC J [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1674786 A2 20060628; EP 1674786 A3 20061102; EP 1674786 B1 20081008; AT E410635 T1 20081015; CA 2518995 A1 20060627; DE 602005010196 D1 20081120; JP 2006185918 A 20060713; JP 4838580 B2 20111214; US 2006181864 A1 20060817; US 7110656 B2 20060919
DOCDB simple family (application)
EP 05028317 A 20051223; AT 05028317 T 20051223; CA 2518995 A 20050909; DE 602005010196 T 20051223; JP 2005369798 A 20051222; US 5830405 A 20050216